1. Describe what it means for a field of study to be considered a science.

Science must have these five characteristics to be considered science. The five characteristics are Observable, Testable, Replicable, Reliable, and Flexible.

Explanation:

Science is a very hard thing to define so instead five characteristics are used to prove it is science.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.